1-Methylpyrazole supplier | CasNO.930-36-9

Name
1-Methylpyrazole
EINECS -0
CAS No. 930-36-9
Article Data39
CAS DataBase
Density 0.996 g/cm³
Solubility Soluble in water
Melting Point 36.5°C (estimate)
Formula C₄H₆N₂
Boiling Point 126.999 °C at 760 mmHg
Molecular Weight 82.105
Flash Point 26.222 °C
Transport Information UN 1993 3/PG 3
Appearance clear colorless to light yellow liquid
Safety 26-37/39-16
Risk Codes 10-36/37/38
Molecular Structure
Hazard Symbols Xi
Synonyms Pyrazole, 1-methyl- (6CI,7CI,8CI);1-Methyl-1H-pyrazole;
PSA 17.82000
LogP 0.42010

Synthetic route

: 288-13-1
NH-pyrazole

: 74-88-4
methyl iodide

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With potassium hydroxide; tetrabutylammomium bromide at 0℃; for 6h;	90%
With potassium tert-butylate; 18-crown-6 ether In diethyl ether for 1h; Ambient temperature;	86%
With potassium hydroxide In water at 20 - 37℃;	85%

: 16034-46-1
1-methyl-1H-pyrazole-5-carboxylic acid

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
In neat (no solvent) at 235 - 250℃;	81%

: 288-13-1
NH-pyrazole

: 616-38-6
carbonic acid dimethyl ester

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
at 140℃; for 8h; atmospheric pressure;	69%
at 115 - 140℃; for 8 - 9h;	14%

: 288-13-1
NH-pyrazole

: 77-78-1
dimethyl sulfate

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With sodium hydroxide	60%
With sodium hydroxide; tetra(n-butyl)ammonium hydrogensulfate In dichloromethane; water at 20℃;	53%

: 92524-99-7
1-methyl-5-(trimethylsilyl)-1H-pyrazole

: 123-72-8
butyraldehyde

A: 930-36-9
1-methyl-1H-pyrazole

B: 92525-22-9
5-(1-hydroxybutyl)-1-methylpyrazole

Conditions

Conditions	Yield
cesium fluoride In N,N-dimethyl-formamide at 50℃; for 1.33333h;	A 30% B 10%

...Expand

: 288-13-1
NH-pyrazole

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With sodium hydroxide; dimethyl sulfate

: 15803-02-8
4-bromo-1-methyl-1H-pyrazole

: 109-72-8, 29786-93-4
n-butyllithium

: 60-29-7
diethyl ether

A: 930-36-9
1-methyl-1H-pyrazole

B: 5952-92-1
1-methyl-1H-pyrazole-4-carboxylic acid

Conditions

Conditions	Yield
anschl. mit CO2 bei -70grad;

...Expand

: 122-31-6
malondialdehyde bis(diethyl acetal)

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With ethanol; methylhydrazine sulfuric acid

: 26429-26-5
1,2-dimethyl-1H-pyrazol-2-ium iodide

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
bei der trocknen Destillation;

: 27258-04-4
bis(pyrazol-1-yl)methane

A: 288-13-1
NH-pyrazole

B: 930-36-9
1-methyl-1H-pyrazole

C: 80510-03-8
Tris(pyrazolyl)methane

Conditions

Conditions	Yield
at 600 - 750℃; under 0.01 Torr;	A 25.2 % Chromat. B 10.0 % Chromat. C 30.8 % Chromat.
at 600 - 750℃; under 0.01 Torr;	A 25.2 % Chromat. B 10 % Chromat. C 30.8 % Chromat.

...Expand

: 74-88-4
methyl iodide

pyrazole silver: pyrazole silver

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With diethyl ether at 120℃; im Rohr;

: 15803-02-8
4-bromo-1-methyl-1H-pyrazole

: 60-29-7
diethyl ether

: 591-51-5
phenyllithium

A: 930-36-9
1-methyl-1H-pyrazole

B: 5952-92-1
1-methyl-1H-pyrazole-4-carboxylic acid

C: 108-86-1
bromobenzene

D benzoic acid and 4-bromo-2-methyl-2H-pyrazole-3-carboxylic acid: benzoic acid and 4-bromo-2-methyl-2H-pyrazole-3-carboxylic acid

Conditions

Conditions	Yield
anschl. mit CO2 bei -70grad;

...Expand

: 7422-82-4
methylpropargylhydrazine

A: 930-36-9
1-methyl-1H-pyrazole

B: methyl-propa-1,2-dienyl-diazene

Conditions

Conditions	Yield
With manganese(IV) oxide In dichloromethane at 0℃;	A 21 % Spectr. B 65 % Spectr.

: methyl-propa-1,2-dienyl-diazene

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
In benzene at 30℃;

: 110-86-1
pyridine

: 16460-04-1
1-methylpyrazolidine

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With hydrogen sulfide

: 67-56-1
methanol

: 102-52-3
malonaldehydebis(dimethylacetal)

A: 288-13-1
NH-pyrazole

B: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
Stage #1: methanol With sulfuric acid; hydrazine hydrate at 0 - 25℃; Stage #2: malonaldehydebis(dimethylacetal) at 68 - 69℃; for 2h; Stage #3: With sodium hydroxide at 0 - 55℃;	A 82.2 %Chromat. B 16.4 %Chromat.

...Expand

: 288-13-1
NH-pyrazole

: 74-87-3
methylene chloride

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With sodium hydroxide In methanol at 50 - 55℃; under 1551.49 - 2585.81 Torr; for 6h;	16.4 %Chromat.

: 288-13-1
NH-pyrazole

: 124-41-4
sodium methylate

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With carbonic acid dimethyl ester Reflux;

: 34846-90-7
methyl 3-methoxyprop-2-enoate

: 60-34-4
methylhydrazine

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
In methanol for 16h; Inert atmosphere; Reflux;

: 39806-90-1
4-iodo-1-methyl-1H-pyrazole

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With methanol; sodium tetrahydroborate; Pd/AlO(OH); water at 20℃; for 1.5h; Sonication; Schlenk technique;	> 95 %Chromat.

: C4H6AuClN2

: 930-36-9
1-methyl-1H-pyrazole

Conditions

Conditions	Yield
In dimethyl sulfoxide

: 930-36-9
1-methyl-1H-pyrazole

: 720702-41-0
(1-methyl-1H-pyrazol-5-yl)boronic acid

Conditions

Conditions	Yield
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran at -78℃; for 1.5h; Stage #2: With Triisopropyl borate In tetrahydrofuran at -78 - 0℃; Stage #3: With hydrogenchloride; water In tetrahydrofuran pH=6;	100%
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran; hexane at -78℃; Stage #2: With Triisopropyl borate In tetrahydrofuran; hexane at -78 - 0℃; Stage #3: With hydrogenchloride; water In tetrahydrofuran; hexane pH=6;	60%
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran; hexane at 5 - 20℃; for 1h; Stage #2: With Trimethyl borate In tetrahydrofuran; hexane at -70℃; for 0.5h; Stage #3: With ammonium chloride In tetrahydrofuran; hexane at -15 - 20℃; for 1h;	38%
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Stage #2: With Triisopropyl borate In tetrahydrofuran; hexane at -78 - 20℃; Stage #3: With hydrogenchloride In water pH=6;

: 930-36-9
1-methyl-1H-pyrazole

: 96-32-2
bromoacetic acid methyl ester

: 4-(2-methoxy-2-oxoethyl)-1-methyl-1H-1,2,4-triazol-4-ium bromide

Conditions

Conditions	Yield
for 72h;	100%

: 930-36-9
1-methyl-1H-pyrazole

: 39806-90-1
4-iodo-1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With iodine; iodic acid In tetrachloromethane; water; acetic acid at 50℃; for 1.5h;	99%
With dihydrogen peroxide; iodine In water at 20℃; for 24h;	91%
Stage #1: 1-methyl-1H-pyrazole With iodine for 0.166667h; Large scale; Stage #2: With dihydrogen peroxide at 18 - 20℃; for 42.5h; Large scale;	91%

: 930-36-9
1-methyl-1H-pyrazole

: [(norbornadiene)RhCl]2

: Rh(1+)*Cl(1-)*C7H8*C3H3N2(CH3)*0.25CH2Cl2=[RhCl(C7H8)(C3H3N2(CH3))]*0.25CH2Cl2

Conditions

Conditions	Yield
With CH2Cl2 In dichloromethane inert atmosphere; stirring (25°C, 2 h); solvent redn. (vac.), pptn. on hexane addn., filtn., washing (hexane), drying (vac.); elem. anal.;	99%

: 930-36-9
1-methyl-1H-pyrazole

: 73482-96-9
rhodium (II) octanoate dimer

: 1268445-96-0
[Rh2(octanoato)4(1-methylpyrazole)]

Conditions

Conditions	Yield
In chloroform (N2); a soln. of ligand added to Rh complex in CHCl3, stirred at room temp. for 1 h; evapd. (vac.); elem. anal.;	99%

: 930-36-9
1-methyl-1H-pyrazole

: 73482-96-9
rhodium (II) octanoate dimer

: 1268445-97-1
[Rh2(octanoato)4(1-methylpyrazole)2]

Conditions

Conditions	Yield
In chloroform (N2); a soln. of ligand added to Rh complex in CHCl3, stirred at room temp. for 1 h; evapd. (vac.); elem. anal.;	99%

: 930-36-9
1-methyl-1H-pyrazole

: 54210-32-1
1-methyl-3-nitro-1H-pyrazole

Conditions

Conditions	Yield
With silica-sulfuric acid impregnated with bismuth nitrate In tetrahydrofuran at 20℃; for 6h; Reagent/catalyst; Green chemistry;	98%

: 930-36-9
1-methyl-1H-pyrazole

: 1942-45-6
4-Octyne

: C12H20N2

Conditions

Conditions	Yield
With bis(acetylacetonate)nickel(II); trimethylaluminum In hexane; toluene at 35℃; for 12h;	96%

: 930-36-9
1-methyl-1H-pyrazole

: 66296-67-1
1-methyl-3,4-dinitropyrazole

Conditions

Conditions	Yield
With bismuth(III) nitrate In tetrahydrofuran at 20℃; for 12h;	96%
With silica-sulfuric acid impregnated with bismuth nitrate In tetrahydrofuran at 20℃; for 6h; Reagent/catalyst; Green chemistry;	92%

: 930-36-9
1-methyl-1H-pyrazole

: di(rhodium)tetracarbonyl dichloride

: 1392329-57-5
cis-chloro(dicarbonyl)(1-methylpyrazole)rhodium(I)

Conditions

Conditions	Yield
In dichloromethane at 20℃; for 6h; Inert atmosphere;	96%

: 930-36-9
1-methyl-1H-pyrazole

: Fe(CO)2[o-{η2-(H-SiMe)2}C6H4][o-(SiMe)2C6H4]

: Fe(Me2SiC6H4SiMe2)(1-methylpyrazole)2(CO)2

Conditions

Conditions	Yield
In tetrahydrofuran at 20℃; for 1h; Schlenk technique;	96%

: 930-36-9
1-methyl-1H-pyrazole

: 28995-88-2
1-methyl-4-((phenylethynyl)sulfonyl)benzene

: 1-methyl-5-(phenylethynyl)-1H-pyrazole

Conditions

Conditions	Yield
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In diethyl ether; hexane at 0℃; Stage #2: 1-methyl-4-((phenylethynyl)sulfonyl)benzene In diethyl ether for 0.25h; Inert atmosphere;	96%

: 930-36-9
1-methyl-1H-pyrazole

: 2875-18-5
2,3,5,6-tetrafluoropyridine

: C9H5F4N3

Conditions

Conditions	Yield
With chloro(dimethylsulfide) gold(I); silver(I) acetate; I,I-bis(acetoxy)iodobenzene In 1,4-dioxane at 100℃; for 15h; Inert atmosphere; regioselective reaction;	96%

: 930-36-9
1-methyl-1H-pyrazole

: 1155287-20-9
(4-bromo-6-formyl-benzothiazol-2-yl)-carbamic Acid tert-butyl Ester

: 1155287-24-3
{4-Bromo-6-[hydroxy-(2-methyl-2H-pyrazol-3-yl)-methyl]-benzothiazol-2-yl}-carbamic Acid tert-butyl Ester

Conditions

Conditions	Yield
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran; methanol; hexane at -78 - 20℃; for 1.5h; Stage #2: (4-bromo-6-formyl-benzothiazol-2-yl)-carbamic Acid tert-butyl Ester In tetrahydrofuran; hexane at -58 - 20℃; for 2h; Stage #3: With ammonium chloride In tetrahydrofuran; hexane; water	95%

: 930-36-9
1-methyl-1H-pyrazole

: 2675-94-7
N,N-diethylacrylamide

: (E)-N,N-diethyl-3-(1-methyl-1H-pyrazol-4-yl)acrylamide

Conditions

Conditions	Yield
With 4,5-Diazafluoren-9-one; oxygen; palladium diacetate; trifluoroacetic acid; p-benzoquinone In 1,4-dioxane at 100℃; under 760.051 Torr; for 24h; regioselective reaction;	95%

: 930-36-9
1-methyl-1H-pyrazole

: 2576-47-8
2-bromoethylamine hydrobromide

: 2-(2-aminoethyl)-1-methyl-1H-pyrazol-2-ium bromide hydrobromide

Conditions

Conditions	Yield
In ethanol at 80℃; for 72h;	94.3%

: 930-36-9
1-methyl-1H-pyrazole

: 1112-39-6
dimethyldimethoxysilan

: 375-72-4
Nonafluorobutanesulfonyl fluoride

A: N,N-dimethylimidazoliumperfluorobutylsulfonate

B: 353-66-2
dimethyldifluorosilane

Conditions

Conditions	Yield
In diethyl ether 35°C , 24 h;	A 94% B n/a
In diethyl ether 35°C , 24 h;	A 94% B n/a

...Expand

: 930-36-9
1-methyl-1H-pyrazole

: [Rh(CO)2(μ-I)]2

: 1392329-62-2
cis-iodo(dicarbonyl)(1-methylpyrazole)rhodium(I)

Conditions

Conditions	Yield
In dichloromethane at -10.16 - 20℃; Inert atmosphere;	94%

: 930-36-9
1-methyl-1H-pyrazole

: 5003-71-4
3-bromopropylamine hydrochloride

: 2-(3-aminopropyl)-1-methyl-1H-pyrazol-2-ium bromide hydrobromide

Conditions

Conditions	Yield
In ethanol at 80℃; for 72h;	93.2%

: 930-36-9
1-methyl-1H-pyrazole

: 5419-55-6
Triisopropyl borate

: 720702-41-0
(1-methyl-1H-pyrazol-5-yl)boronic acid

Conditions

Conditions	Yield
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran at -78℃; for 1.5h; Stage #2: Triisopropyl borate In tetrahydrofuran at 20℃;	93%
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran; hexanes at -78℃; for 0.5h; Stage #2: Triisopropyl borate In tetrahydrofuran; hexanes at -78 - 0℃; for 1h; Stage #3: With hydrogenchloride In tetrahydrofuran; hexanes; water for 1h;

: 930-36-9
1-methyl-1H-pyrazole

: 459-57-4
4-fluorobenzaldehyde

: 1020712-91-7
(4-fluorophenyl)(1-methyl-1H-pyrazol-5-yl)methanol

Conditions

Conditions	Yield
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran at -78℃; for 0.0833333h; Stage #2: 4-fluorobenzaldehyde In tetrahydrofuran at -78 - 20℃; for 1h; Stage #3: With ammonium chloride In water	93%

: 930-36-9
1-methyl-1H-pyrazole

: 121-43-7
Trimethyl borate

: 720702-41-0
(1-methyl-1H-pyrazol-5-yl)boronic acid

Conditions

Conditions	Yield
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran; hexane at 0 - 20℃; for 4h; Stage #2: Trimethyl borate In tetrahydrofuran; hexane at -70℃;	93%

: 930-36-9
1-methyl-1H-pyrazole

: 1-methylpyrazole hydrobromide

Conditions

Conditions	Yield
With hydrogen bromide	93%

: 930-36-9
1-methyl-1H-pyrazole

: 34091-51-5
5-iodo-1-methyl-1H-pyrazole

Conditions

Conditions	Yield
Stage #1: 1-methyl-1H-pyrazole With (PMDETA)2K2Mg(CH2SiMe3)4 at 0℃; for 2h; Inert atmosphere; Schlenk technique; Stage #2: With iodine for 1h; Inert atmosphere; Schlenk technique; regioselective reaction;	92%
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1.25h; Stage #2: With iodine In tetrahydrofuran at 20℃; for 1h;	90%
Stage #1: 1-methyl-1H-pyrazole With (THF)Li(TMP)Zn(tBu)2 In tetrahydrofuran at 25℃; for 1h; Inert atmosphere; Stage #2: With iodine In tetrahydrofuran at 25℃; for 1h; Inert atmosphere; regioselective reaction;	89%

: 930-36-9
1-methyl-1H-pyrazole

: palladium dichloride

: 250285-32-6
1,3-bis[2,6-diisopropylphenyl]imidazolium chloride

: C31H42Cl2N4Pd

Conditions

Conditions	Yield
With potassium carbonate In tetrahydrofuran at 80℃; for 18h; Inert atmosphere; Sealed tube;	91%

...Expand

: 930-36-9
1-methyl-1H-pyrazole

: 5-bromo-1-methyl-1H-pyrazole

Conditions

Conditions	Yield
With ferric(III) bromide; bromine In tert-butyl methyl ether at 0 - 20℃;	90.5%
With n-butyllithium; bromine In tetrahydrofuran at -76 - -70℃; Inert atmosphere;	47.5%

: 930-36-9
1-methyl-1H-pyrazole

: 42110-76-9
5-Chloro-1-methylpyrazole

Conditions

Conditions	Yield
With aluminum (III) chloride; chlorine In tert-butyl methyl ether at 0 - 20℃;	90.5%

: 930-36-9
1-methyl-1H-pyrazole

: 68-12-2, 33513-42-7
N,N-dimethyl-formamide

: 27258-33-9
1-methyl-1H-pyrazole-5-carbaldehyde

Conditions

Conditions	Yield
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran; hexane at -20℃; for 2.5h; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran; hexane at -20℃; for 1h;	90%
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran; hexane at -20℃; for 2.5h; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran; hexane at -20℃; for 1h;	90%
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran; hexane for 1h; Inert atmosphere;	58%

: 930-36-9
1-methyl-1H-pyrazole

: 25015-63-8
4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane

: 847818-74-0
1-methyl-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole

Conditions

Conditions	Yield
Stage #1: 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane With C26H50CoN4O2 at 20℃; for 0.0833333h; Inert atmosphere; Glovebox; Stage #2: 1-methyl-1H-pyrazole at 80℃; for 48h; Inert atmosphere; Sealed tube;	90%

1-Methylpyrazole Specification

The 1-Methylpyrazole, with the CAS registry number 930-36-9, is also known as 1H-Pyrazole,1-methyl-. It belongs to the product categories of Pyrazoles & Triazoles; Building Blocks; Heterocyclic Building Blocks; Pyrazoles. This chemical's molecular formula is C₄H₆N₂ and molecular weight is 82.10. What's more, its systematic name is 1-Methyl-1H-pyrazole. This chemical is stable at common pressure and temperature, and it should be sealed and stored in a cool and dry place. Moreover, it should be protected from strong oxidants.

Physical properties of 1-Methylpyrazole are: (1)ACD/LogP: -0.14; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.14; (4)ACD/LogD (pH 7.4): -0.14; (5)ACD/BCF (pH 5.5): 1.00; (6)ACD/BCF (pH 7.4): 1.00; (7)ACD/KOC (pH 5.5): 19.97; (8)ACD/KOC (pH 7.4): 19.98; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 17.82 Å²; (13)Index of Refraction: 1.525; (14)Molar Refractivity: 25.25 cm³; (15)Molar Volume: 82.394 cm³; (16)Polarizability: 10.01×10^-24cm³; (17)Surface Tension: 35.0 dyne/cm; (18)Density: 0.996 g/cm³; (19)Flash Point: 26.222 °C; (20)Enthalpy of Vaporization: 34.972 kJ/mol; (21)Boiling Point: 126.999 °C at 760 mmHg; (22)Vapour Pressure: 13.8 mmHg at 25°C.

Preparation: this chemical can be prepared by 1H-pyrazole and iodomethane at the ambient temperature. This reaction will need reagent potassium tert-butoxide and solvent diethyl ether with the reaction time of 1 hour. This reaction will also need catalyst 18-crown-6. The yield is about 86%.

1-Methylpyrazole can be prepared by 1H-pyrazole and iodomethane at the ambient temperature

Uses of 1-Methylpyrazole: it can be used to produce 1-methyl-4-nitro-1H-pyrazole. It will need reagents HNO₃, H₂SO₄. The yield is about 60%.

1-Methylpyrazole can be used to produce 1-methyl-4-nitro-1H-pyrazole

When you are using this chemical, please be cautious about it as the following:
This chemical is flammable, so you should keep it away from sources of ignition - No smoking. It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it, you need wear suitable gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)SMILES: n1cccn1C
(2)Std. InChI: InChI=1S/C4H6N2/c1-6-4-2-3-5-6/h2-4H,1H3
(3)Std. InChIKey: UQFQONCQIQEYPJ-UHFFFAOYSA-N

Product Name

1-Methylpyrazole

Synthetic route

1-Methylpyrazole Specification

Related Products

Hot Products